Book Image

Mastering AWS CloudFormation - Second Edition

By : Karen Tovmasyan
Book Image

Mastering AWS CloudFormation - Second Edition

By: Karen Tovmasyan

Overview of this book

The advent of DevOps and the cloud revolution has compelled software engineers and operations teams to rethink how to manage complex infrastructures and build resilient solutions. With this AWS book, you’ll find out how you can use Infrastructure as Code (IaC) to simplify infrastructure operations and manage the modern cloud with AWS CloudFormation. This guide covers AWS CloudFormation comprehensively, from template structures to developing complex and reusable infrastructure stacks. It takes you through template validation, stack deployment, and handling deployment failures. It also demonstrates the use of AWS CodeBuild and CodePipeline for automating resource delivery and implementing continuous integration and continuous delivery (CI/CD) practices. As you advance, you’ll learn how to modularize and unify your template on the fly using macros or by fixating the version using modules. You’ll create resources outside of AWS with custom resources and catalog them with the CloudFormation registry. Finally, you’ll improve the way you manage the modern cloud environment on AWS by extending CloudFormation through the AWS serverless application model (SAM) and the AWS cloud development kit (CDK). By the end of this book, you’ll have mastered key AWS CloudFormation concepts and will be able to extend its capabilities for developing and deploying your own infrastructure.
Table of Contents (19 chapters)
Free Chapter
1
Part 1: CloudFormation Internals
4
Part 2: Provisioning and Deployment at Scale
9
Part 3: Extending CloudFormation

Introducing StackSets

The result of CloudFormation stack deployment is always a bunch of resources, grouped in a single stack. We can consider a StackSet as a group of stacks deployed from the same template, with the same or different parameters, in multiple regions in a single account, in a single region for multiple accounts, or even multiple regions for multiple accounts! StackSets can be deployed to target regions or even accounts (whether in your AWS organization or just a separate account), as shown in the following diagram:

Figure 5.1 – StackSet architecture

Figure 5.1 – StackSet architecture

As you can see in the preceding diagram, each StackSet consists of one or more stacks, provisioned from the same template. Those stacks are referred to as stack instances and are distributed among various accounts and regions. This is the first concept that we need to know.

Another concept is administrator and target accounts. An administrator account is an account where StackSets...